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Re: [ft-devel] possibility of optimizing for speed with device metrics


From: Werner LEMBERG
Subject: Re: [ft-devel] possibility of optimizing for speed with device metrics
Date: Sun, 25 Oct 2015 11:07:07 +0100 (CET)

> [...] and see that Freetype does all the horizontal advance
> calculations anyway, regardless, then drop them in preference to
> available hdmx data.  (to others: the new flag controls the
> dropping).  Hence the no-difference to speed. So there is a small
> optimization one can make moving that check earlier for normal
> usage, simply trust the hdmx data and not calculating anything, and
> make freetype marginally faster on normal usage.

Sounds reasonable.

> I thought I should mention this on freetype-devel and I'll let
> others put that in as a small evening project or something :-).

Indeed.  Patches welcome :-)


    Werner



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